APA (7th ed.) Citation

Gill, J. E. (1957). The Proterozoic in Canada. University of Toronto Press.

Chicago Style (17th ed.) Citation

Gill, J. E. The Proterozoic in Canada. [Toronto]: University of Toronto Press, 1957.

MLA (9th ed.) Citation

Gill, J. E. The Proterozoic in Canada. University of Toronto Press, 1957.